When you need to wear your prescription glasses and safety eye protection, you can trust Jackson Safety OTG “Over the Glasses” Safety Glasses. They are made with a nylon frame for strength, durability and comfort and fit over most prescription glasses. The see-through integrated side shields provide side protection without hindering peripheral vision. The smoke lenses or "safety sunglasses" are hard coated for scratch resistance and longer life, and have an anti-fog coating for humid environment and temperature variances. These safety glasses meet ANSI Z87.1+ standards for high impact and the polycarbonate lenses provide 99.9% UVA / UVB / UVC protection.